Home / 213,022,897.30-319,534,345.95-91,854,349.30

Finding the Fourth Proportional to 213,022,897.30, 319,534,345.95 and 91,854,349.30

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Solution

The fourth proportional to 213,022,897.30, 319,534,345.95 and 91,854,349.30 is: 137,781,523.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,022,897.30 : 319,534,345.95 = 91,854,349.30 : x
  2. Step 2: Convert to fraction form
    213,022,897.30/319,534,345.95 = 91,854,349.30/x
  3. Step 3: Cross multiply
    213,022,897.30x = 319,534,345.95 × 91,854,349.30
  4. Step 4: Simplify right side
    213,022,897.30x = 29,350,619,426,238,340
  5. Step 5: Solve for x
    x = 29,350,619,426,238,340/213,022,897.30
  6. Step 6: Final answer
    x = 137,781,523.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.